Exam 32: Homeostasis and the Organization of the Animal Body

The blood vessels that provide nourishment for the skin cells are located in the dermis only.

Blood is a type of connective tissue that contains fibers and cells suspended in a matrix.

The mucus that traps dust particles in the lungs is produced by

Which tissue contains large amounts of densely packed collagen fibers that run parallel to each other?

The pads that cushion the vertebrae are made of

While working in a forensic lab, you are given a bit of tissue to analyze. It has several layers. The upper surface consists of dead, flattened cells. As you move deeper into the tissue, the cells look healthier. The bottom layer of cells is actively dividing. Under the dividing layer is an acellular protein goo. You identify the sample as tissue.

Glands that lack ducts and use the bloodstream to transport their products are called glands.

While sitting in a hot car, your body begins to sweat, which cools the body back down. This illustrates a feedback loop.

You are given a sample of tissue to identify. The cells contain large amounts of protein arranged in stripes. When an electrical charge is applied to it, the tissue twitches and then relaxes. You classify this sample as tissue.

When you move your fingers to turn the page, you are using the nervous system and

Which tissue is in direct contact with the external environment of an animal?

Cardiac muscle requires input from the nervous system to contract.

The common garter snake (Thamnophis sirtalis) is found throughout North America. In the South, it is active year round. In the North, it is active during the warmer months but hibernates during the winter. It is commonly found basking on warm rocks during cool mornings. This lifestyle indicates that the snake is probably

After eating a large meal of pasta, an individual's blood sugar levels are elevated. In response to this, the pancreas secretes a hormone called insulin, which acts to lower blood sugar levels. Once the blood sugar levels drop to the normal level, the pancreas stops secreting insulin. This is an example of

Maintaining homeostasis requires the coordinated efforts of multiple negative feedback loops.